EP 4085035 A4 20240124 - METHOD OF PREPARING A WATER-REACTIVE SULFIDE MATERIAL
Title (en)
METHOD OF PREPARING A WATER-REACTIVE SULFIDE MATERIAL
Title (de)
VERFAHREN ZUR HERSTELLUNG EINES WASSERREAKTIVEN SULFIDMATERIALS
Title (fr)
PROCÉDÉ DE PRÉPARATION D'UN MATÉRIAU DE TYPE SULFURE RÉACTIF À L'EAU
Publication
Application
Priority
- US 202062977505 P 20200217
- US 202163140624 P 20210122
- US 2021018386 W 20210217
Abstract (en)
[origin: US2021253424A1] A process for producing a low-cost water-reactive metal sulfide material includes dissolving a substantially anhydrous alkali metal salt and a substantially anhydrous sulfide compound in a substantially anhydrous polar solvent, providing differential solubility for a substantially high solubility alkali metal sulfide and a substantially low solubility by-product, and forming a mixture of the high solubility alkali metal sulfide and the low solubility by-product; separating the low solubility by-product from the mixture to isolate the supernatant including the alkali metal sulfide, and separating the polar solvent from the alkali metal sulfide to produce the alkali metal sulfide. The present invention provides a scalable process for production of a high purity alkali metal sulfide that is essentially free of undesired by-products.
IPC 8 full level
C03C 10/16 (2006.01); H01B 1/12 (2006.01); H01M 10/0525 (2010.01)
CPC (source: EP KR US)
C01B 17/22 (2013.01 - EP KR US); H01M 10/052 (2013.01 - KR); H01M 10/0562 (2013.01 - KR); C01P 2006/90 (2013.01 - US); H01M 2220/20 (2013.01 - KR); H01M 2300/0068 (2013.01 - KR); Y02E 60/10 (2013.01 - EP)
Citation (search report)
- [XA] EP 1681263 A1 20060719 - IDEMITSU KOSAN CO [JP]
- [I] WO 9813297 A1 19980402 - MEHTA VIJAY CHANDRAKANT [US]
- See also references of WO 2021167982A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
US 11542161 B2 20230103; US 2021253424 A1 20210819; CA 3166809 A1 20210826; CN 115135617 A 20220930; CN 115135617 B 20240423; CN 118343682 A 20240716; EP 4085035 A1 20221109; EP 4085035 A4 20240124; JP 2023513622 A 20230331; KR 20220156838 A 20221128; MX 2022009724 A 20230111; US 11958742 B2 20240416; US 2023089934 A1 20230323; WO 2021167982 A1 20210826
DOCDB simple family (application)
US 202117177988 A 20210217; CA 3166809 A 20210217; CN 202180014907 A 20210217; CN 202410413406 A 20210217; EP 21756600 A 20210217; JP 2022549274 A 20210217; KR 20227032239 A 20210217; MX 2022009724 A 20210217; US 2021018386 W 20210217; US 202218070812 A 20221129